Table 2 Comparison of demographic data and clinical data of the two groups
Adding-on group(n = 8) | No adding-on group(n = 38) | P value | |
|---|---|---|---|
Age at surgery (yrs) | 14.1 ± 1.2 | 15.7 ± 1.8 | 0.023 |
Male: Female | 2/6 | 11/27 | 0.876 |
Risser grade at surgery | 3.8 ± 1.0 | 4.0 ± 1.1 | 0.416 |
Fusion levels | 6.1 ± 0.6 | 6.0 ± 0.7 | 0.831 |
Operative time (min) | 190.0 ± 30.2 | 208.0 ± 38.1 | 0.246 |
Estimated blood loss (ml) | 425.0 ± 138.9 | 550.3 ± 176.3 | 0.057 |
Follow-up(months) | 31.5 ± 14.2 | 25.4 ± 4.7 | 0.467 |